特征（Trait）

Rust 让您可以依据特征对类型进行抽象化处理。特征与接口类似：

XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

Speaker Notes

 This slide and its sub-slides should take about 15 minutes.

  • trait 定义了类型实现该 trait 所必须具备的一些方法。

  • In the “Generics” segment, next, we will see how to build functionality that is generic over all types implementing a trait.